News
UFAD vs. Displacement
Both Underfloor Air Distribution (UFAD) and Displacement Air Distribution are well defined in the 2021 ASHRAE Handbook Applications, Chapter 20, Space Air Diffusion. Generally, the idea for UFAD is to have a well-mixed lower level in the occupied space up to about 4.5 feet above the floor. From the…
VAV Systems Deliver Comfort
When designing a commercial HVAC system that will serve a diversity of spaces, selecting a VAV air…
Rest Easy with Nailor Stealth Terminal Units
Imitated but Never Duplicated
Building engineers, owners, and occupants can rest easy knowing their…
Nailor Position on COVID-19 & Air Cleaning
Date: December 31, 2020 (revised)
There have been multiple papers written by many authorities on…
Air Measuring Damper
Knowing how much air is passing through a duct or entering a building is imperative in many…
Water Source Heat Pump Building Systems: Cooling Tower
In our previous articles we highlighted the benefits, design, energy efficiency, and configurations…
Water Source Heat Pumps: Configurations
Water source heat pump (WSHP) systems have proven in many studies to be a more efficient, less…
Does Your Space Deserve the Most Advanced Room Air Cleaner?
The American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE) is the…
Constant Volume Regulators: What are they and how they help
Many obstacles will arise when trying to keep a building 30-50°F warmer or cooler than the outside…
Filters on Fan Powered Terminal Units
Summary
Adding a filter that has greater efficiency than just a throwaway fiberglass filter can be…
How Water Source Heat Pumps Work
Most people are familiar with a standard residential split air conditioning system. It is…
How a Water Source Heat Pump Works: Thermodynamics 101
In my previous article, located here, I discussed the benefits of selecting a water source heat…
Seismic Shift: Nailor Terminal and Horizontal Fan Coil Units now certified for seismic environments
According to the United States Geological Survey (USGS) there are 65,000,000 people living in an…